74476-33-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74476-33-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,4,7 and 6 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 74476-33:
(7*7)+(6*4)+(5*4)+(4*7)+(3*6)+(2*3)+(1*3)=148
148 % 10 = 8
So 74476-33-8 is a valid CAS Registry Number.
74476-33-8Relevant academic research and scientific papers
A novel synthesis of the carbapen-2-em ring system
Ratcliffe,Salzmann,Christensen
, p. 31 - 34 (2007/10/02)
A new synthesis of the carbapenem ring system, as found in thienamycin and related natural products, has been developed. The key step involves a highly efficient carbene insertion reaction which produces the bicyclic ring system by forming the N3 bond.
